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1.
Rev Esp Quimioter ; 37(3): 270-273, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38591493

RESUMO

OBJECTIVE: Mycoplasma genitalium (MG) is a microorganism related to sexually transmitted infections. Antibiotic resistance of MG leads to an increase in treatment failure rates and the persistence of the infection. The aim of this study was to describe the most frequent mutations associated with azithromycin and moxifloxacin resistance in our geographical area. METHODS: A prospective study from May 2019 to May 2023 was performed. MG-positive samples were collected. Real-time PCRs (AllplexTM MG-AziR Assay and AllplexTM MG-MoxiR Assay, Seegene) were performed in MG positive samples to detect mutations in 23S rRNA V domain and parC gene. RESULTS: A 37.1% of samples presented resistance determinants to azithromycin and the most common mutation detected was A2059G (57.9%). Resistance to moxifloxacin was studied in 72 azithromycin-resistant samples and 36.1% showed mutations, being G248T the most prevalent (73.1%). CONCLUSIONS: The resistance to different lines of treat ment suggests the need for a targeted therapy and the performing of a test of cure afterwards.


Assuntos
Antibacterianos , Azitromicina , Farmacorresistência Bacteriana , Moxifloxacina , Mutação , Infecções por Mycoplasma , Mycoplasma genitalium , Mycoplasma genitalium/efeitos dos fármacos , Mycoplasma genitalium/genética , Moxifloxacina/farmacologia , Moxifloxacina/uso terapêutico , Azitromicina/farmacologia , Azitromicina/uso terapêutico , Espanha , Humanos , Estudos Prospectivos , Antibacterianos/farmacologia , Antibacterianos/uso terapêutico , Farmacorresistência Bacteriana/genética , Infecções por Mycoplasma/tratamento farmacológico , Infecções por Mycoplasma/microbiologia , Feminino , Masculino , Testes de Sensibilidade Microbiana , RNA Ribossômico 23S/genética , Adulto , DNA Topoisomerase IV/genética
2.
Radiologia (Engl Ed) ; 65 Suppl 2: S71-S73, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37858355

RESUMO

Emphysematous osteomyelitis is an extremely rare entity consisting of the presence of intraosseous gas that can extend to the joints and adjacent soft tissues. It is an aggressive infectious process associated with high mortality, especially in patients with risk factors such as tumors or diabetes mellitus. Because early diagnosis and immediate treatment are crucial to prevent the potentially devastating consequences of this condition, imaging tests such as computed tomography play a fundamental role in its diagnosis and management. Therefore, radiologists must be aware that intraosseous gas is a rare but alarming sign that is pathognomonic of emphysematous osteomyelitis, especially in the axial skeleton.


Assuntos
Enfisema , Osteomielite , Humanos , Osteomielite/diagnóstico por imagem , Osteomielite/terapia , Osteomielite/complicações , Enfisema/complicações , Enfisema/diagnóstico por imagem , Fatores de Risco , Tomografia Computadorizada por Raios X , Diagnóstico Diferencial
3.
Math Biosci ; 358: 108985, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36828232

RESUMO

A discrete model is proposed for the temporal evolution of a population of cells sorted according to their telomeric length. This model assumes that, during cell division, the distribution of the genetic material to daughter cells is asymmetric, i.e. chromosomes of one daughter cell have the same telomere length as the mother, while in the other daughter cell telomeres are shorter. Telomerase activity and cell death are also taken into account. The continuous model is derived from the discrete model by introducing the generational age as a continuous variable in [0,h], being h the Hayflick limit, i.e. the number of times that a cell can divide before reaching the senescent state. A partial differential equation with boundary conditions is obtained. The solution to this equation depends on the initial telomere length distribution. The initial and boundary value problem is solved exactly when the initial distribution is of exponential type. For other types of initial distributions, a numerical solution is proposed. The model is applied to the human follicular growth from preantral to preovulatory follicle as a case study and the aging rate is studied as a function of telomerase activity, the initial distribution and the Hayflick limit. Young, middle and old cell-aged initial normal distributions are considered. In all cases, when telomerase activity decreases, the population ages and the smaller the h value, the higher the aging rate becomes. However, the influence of these two parameters is different depending on the initial distribution. In conclusion, the worst-case scenario corresponds to an aged initial telomere distribution.


Assuntos
Telomerase , Humanos , Idoso , Telomerase/genética , Telomerase/metabolismo , Envelhecimento/fisiologia , Morte Celular , Divisão Celular , Telômero/metabolismo
4.
J Environ Manage ; 316: 115329, 2022 Aug 15.
Artigo em Inglês | MEDLINE | ID: mdl-35658264

RESUMO

The effect of the ZrO2 content on the performance (activity, selectivity, stability) of In2O3-ZrO2 catalyst has been studied on the hydrogenation of CO2/CO mixtures. This effect is a key feature for the viability of using In2O3-ZrO2/SAPO-34 tandem catalysts for the direct conversion of CO2 and syngas into olefins via oxygenates as intermediates. The interest of co-feeding syngas together with CO2 resides in jointly valorizing syngas derived from biomass or wastes (via gasification) and supplying the required H2. The experiments of methanol synthesis and direct synthesis of olefins, with In2O3-ZrO2 and In2O3-ZrO2/SAPO-34 catalysts, respectively, have been carried out under the appropriate conditions for the direct olefins synthesis (400 °C, 30 bar, H2/COX ratio = 3) in an isothermal fixed bed reactor at low space time values (kinetic conditions) to evaluate the behavior and deactivation of the catalysts. The Zr/In ratio of 1/2 favors the conversion of CO2 and COX, attaining good oxygenates selectivity, and prevents the sintering attributable to the over-reduction of the In2O3 (more significant for syngas feeds). The improvement is more remarkable in the direct olefins synthesis, where the thermodynamic equilibrium of methanol formation is displaced, and methanation suppressed (in a greater extent for feeds with high CO content). With the In2O3-ZrO2/SAPO-34 tandem catalysts, the conversion of COx almost 5 folds respect oxygenates synthesis with In2O3-ZrO2 catalyst, meaning the yield of the target products boosts from ∼0.5% of oxygenates to >3% of olefins (selectivity >70%) for mixtures of CO2/COX of 0.5, where an optimum performance has been obtained.


Assuntos
Alcenos , Dióxido de Carbono , Biomassa , Catálise , Metanol
5.
Rev Clin Esp (Barc) ; 221(7): 393-399, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34332701

RESUMO

BACKGROUND AND OBJECTIVE: Clinicians face a multitude of ethical conflicts in their daily practice. There have been no studies on the types of ethical conflicts encountered most frequently and that are of most concern to clinicians in Spain. The aim of this study is to report the most common ethical conflicts faced by Spanish internists, as well as the importance that the practitioners attribute to each conflict. MATERIALS AND METHODS: Our observational cross-sectional study employed a voluntary and anonymous survey aimed at Spanish medical internists and distributed through an ad hoc platform of the Spanish Society of Internal Medicine. RESULTS: The most common and relevant ethical issues for Spanish internists are related to patients' end of life (decisions limiting therapeutic effort, use of palliative treatments, the establishment of do-not-resuscitate orders), the conflicts arising within the doctor-patient/family relationship, and making decisions with noncompetent patients. These results are similar to those of other English and European series. The ethical problems further complicate the healthcare activity of clinicians who more often notice these problems (50.3%) than those who do not notice them (16%). CONCLUSIONS: The most common and relevant ethical conflicts among Spanish internists are related to managing patients' end of life, followed by those related to the doctor-patient relationship and the management of noncompetent patients. It is essential that training programs be designed to better address and recognise these problems.


Assuntos
Relações Médico-Paciente , Médicos , Estudos Transversais , Humanos , Medicina Interna , Ordens quanto à Conduta (Ética Médica)
6.
Math Med Biol ; 38(3): 273-291, 2021 08 15.
Artigo em Inglês | MEDLINE | ID: mdl-33786603

RESUMO

There is a gradual telomere shortening due to the inability of the replication machinery to copy the very ends of chromosomes. Additionally, other factors such as high levels of oxidation (free radicals or reactive oxygen species (ROS)), e.g. due to cumulated stress, inflammation or tobacco smoke, accelerate telomere shortening. In humans, the average telomere length is about 10-15 kb at birth and telomeres shorten at a pace of 70 bp per year. However, when cells are exposed to ROS, telomere attrition happens at a faster pace, generating a wide variety of telomere size distribution in different length percentiles, which are different to what is expected just by age. In this work, the generational age of a cell is associated with its telomere length (TL), from certain maximum to the minimal TL that allows replication. In order to study the accumulation of aged granulosa cells in human follicles, from preantral to preovulatory size, a mathematical model is proposed, regarding different degrees of accelerated telomere shortening, which reflect the action of ROS in addition to the telomere shortening that happens after cell division. In cases of cells with TL shorter than cells with average TL, with low telomerase activity and accelerated telomere shortening, the mathematical model predicts an aged outcome in preovulatory follicles. The model provides a plausible explanation for what has been observed in oocytes from older women, which have been exposed to ROS for a longer period of time and have bad outcomes after in vitro fertilization.


Assuntos
Envelhecimento , Encurtamento do Telômero , Aceleração , Idoso , Envelhecimento/genética , Feminino , Humanos , Modelos Teóricos , Estresse Oxidativo
7.
Rev Clin Esp ; 2020 Jul 07.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-32650946

RESUMO

BACKGROUND AND OBJECTIVE: Clinicians face a multitude of ethical conflicts in their daily practice. There have been no studies on the types of ethical conflicts encountered most frequently and that are of most concern to clinicians in Spain. The aim of this study is to report the most common ethical conflicts faced by Spanish internists, as well as the importance that the practitioners attribute to each conflict. MATERIALS AND METHODS: Our observational cross-sectional study employed a voluntary and anonymous survey aimed at Spanish medical internists and distributed through an ad hoc platform of the Spanish Society of Internal Medicine. RESULTS: The most common and relevant ethical issues for Spanish internists are related to patients' end of life (decisions limiting therapeutic effort, use of palliative treatments, the establishment of do-not-resuscitate orders), the conflicts arising within the doctor-patient/family relationship, and making decisions with noncompetent patients. These results are similar to those of other English and European series. The ethical problems further complicate the healthcare activity of clinicians who more often notice these problems (50.3%) than those who do not notice them (16%). CONCLUSIONS: The most common and relevant ethical conflicts among Spanish internists are related to managing patients' end of life, followed by those related to the doctor-patient relationship and the management of noncompetent patients. It is essential that training programs be designed to better address and recognise these problems.

8.
Rev Esp Quimioter ; 32(6): 539-544, 2019 Dec.
Artigo em Espanhol | MEDLINE | ID: mdl-31642638

RESUMO

OBJECTIVE: Communicate the activity of telemedicine, from its opening, between a hospital consultation of infectious diseases and a penitentiary center. METHODS: Descriptive study of the tele-consultation of infectious diseases of the Alcorcón Foundation University Hospital with the Navalcarnero penitentiary center from 2013 to 2017, which is carried out by videoconference. The reason and number of consultations, diagnosis of HIV, antiretroviral treatment (ART), immunovirological situation, diagnosis of hepatitis C virus (HCV= and intervention performed by the infectious expert were analyzed. RESULTS: A total of 75 patients were evaluated in a total of 168 consultations (in the first year 11 consultations and in the fifth year 62). The index of successive / new consultations was 1.24 and 85% of the patients required less than 1 year of follow-up. 84% of patients did not move to the hospital. 99% of patients accepted this modality. 96% were HIV positive, 94% of them took ART and 85% had undetectable viral load with 532 CD4/mL of medium. 90% had positive serology for HCV. 72% of the consultations were for the assessment of HCV treatment, which was sofosbuvir/ledipasvir by 63%. 40% changed their ART (70% to avoid interactions). CONCLUSIONS: Most of the evaluated patients have HIV infection. This type of consultation has a growing demand, is efficient (avoids transfers and is decisive) and has high acceptance. The most frequent reason for consultation was the treatment of HCV and more than a third of patients required ART change.


Assuntos
Infecções por HIV/diagnóstico , Infecções por HIV/tratamento farmacológico , Hepatite C Crônica/diagnóstico , Hepatite C Crônica/tratamento farmacológico , Prisões , Telemedicina , Adulto , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos
9.
J Theor Biol ; 462: 446-454, 2019 02 07.
Artigo em Inglês | MEDLINE | ID: mdl-30502407

RESUMO

The aim of this work is to study the aging rate at which human follicles reach the preovulatory state. To this end, both telomere length and telomerase activity effects on granulosa cells (GCs) aging has been studied. GCs are somatic cells which determine the development of the oocyte. A human preantral follicle takes approximately 85 days to achieve the preovulatory size, going through several stages (Gougeon, 1996). The telomere length of GCs of each class of follicles, during folliculogenesis, are modelled using a chemical master equation formalism similar to the one in Wesch et al. (2016). Seven differential ordinary systems of equations, corresponding to seven stages of the follicule maturation, concatenated in time, are considered. The mitotic and death rates are approximated by using the mean number of GCs in each class of follicles and the time they remain on each stage. The influence of different telomerase activity rates and the telomere shortening of the preovulatory follicle is studied. Some cases of infertility are associated with low levels of telomerase activity and short telomeres in GCs. The method aims at understanding how low levels of telomerase activity in preovulatory stages lead to the accumulation of aged GCs. In the case of higher telomerase activities, the mathematical model predicts a more juvenile outcome in preovulatory follicles. Juvenile GCs, could be critical for embryo development if the oocyte were fertilized, since GCs, transformed in corpus luteum, must divide and increase their size (Alila and Hansel, 1984) to sustain early pregnancy (Csapo et al., 1972).


Assuntos
Envelhecimento , Modelos Teóricos , Folículo Ovariano/fisiologia , Telomerase/metabolismo , Desenvolvimento Embrionário , Feminino , Fertilidade , Células da Granulosa/ultraestrutura , Humanos , Telômero/ultraestrutura
11.
New Microbes New Infect ; 22: 30-36, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-29556406

RESUMO

'Candidatus Neoehrlichia mikurensis' is an uncultured emerging bacterium that is provisionally included in the family Anaplasmataceae. In Europe, it is transmitted by Ixodes ricinus ticks. Rodents are the reservoirs. It is widely distributed in mammals (both wild and domestic) and birds. It causes an inflammatory disease in humans with underlying diseases, but the microorganism also affects immunocompetent individuals in which asymptomatic infection has been recognized. A high degree of suspicion and the use of molecular tools are needed for the correct diagnosis. Efforts to cultivate it and to investigate its pathogenesis should be a priority.

12.
Transplant Proc ; 50(2): 433-435, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-29579821

RESUMO

BACKGROUND: Hand-assisted laparoscopic nephrectomy (HALDN) is currently the procedure of choice for obtaining living donor kidneys for transplantation. In our institution, it has been the standard procedure for 5 years. Previous studies have shown the same function of the graft as that obtained by open surgery, with a lower rate of bleeding and no differences in complications. We sought to demonstrate the experience and safety of HALDN compared with open donor nephrectomy in healthy donors for kidney transplantation. METHODS: A retrospective analytical observational study was conducted, reviewing the records of the living donors for kidney transplant undergoing open donor nephrectomy or HALDN in our center from March 1, 2009, to March 1, 2016. Renal function was assessed by the estimated glomerular filtration rate by the Modification of Diet in Renal Disease method before and after donation, as well as bleeding (mL), and complications (according to Clavien), performing a comparative analysis between the two techniques using parametric or nonparametric tests. RESULTS: A total of 179 living donor nephrectomies were performed during the study period-31 open donor nephrectomy (17.3%) and 148 HALDN (82.7%)-without relevant baseline differences, except for creatinine. HALDN has a shorter surgical time (156,473 ± 87.75 minutes vs 165,484 ± 69.95 minutes) and less bleeding (244.59 ± 416.08 mL vs 324.19 ± 197.986 mL) and a shorter duration of hospital stay (3.74 ± 1.336 days vs 4.75 ± 1.226 days). There were no significant differences in surgical complications at 30 days, or graft loss reported; there were 3 conversions (1.7%) from the HALDN to the open technique. There were no differences in renal function in the donors or recipients at the 5th day or the month after surgery. CONCLUSIONS: Laparoscopic nephrectomy has replaced open surgery as the gold standard for living kidney donors. HALDN is a safe and feasible procedure when compared with open donor nephrectomy, achieving a shorter surgical time with less bleeding, and no difference in the number of complications. This procedure lowers costs by decreasing the duration of the hospital stay, making is feasible to perform it at any institution with appropriately trained personnel.


Assuntos
Laparoscopia Assistida com a Mão/métodos , Transplante de Rim/métodos , Doadores Vivos , Nefrectomia/métodos , Coleta de Tecidos e Órgãos/métodos , Adulto , Feminino , Humanos , Tempo de Internação , Masculino , Duração da Cirurgia , Complicações Pós-Operatórias/epidemiologia , Estudos Retrospectivos , Fatores de Tempo
13.
New Microbes New Infect ; 21: 117-121, 2018 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-29321939

RESUMO

Rickettsia amblyommatis, formerly named Rickettsia amblyommii and 'Candidatus Rickettsia amblyommii' is an intracellular bacterium belonging to the spotted fever group Rickettsia. It is highly prevalent in Amblyomma americanum and in other Amblyomma spp. throughout the Western Hemisphere. R. amblyommatis has been cultivated in chicken fibroblast, primary embryonated chicken eggs, Vero cells and arthropod-derived cells. Because of the affinity of rickettsiae to invade vascular endothelial cells, we tried to isolate R. amblyommatis from a nymph of Amblyomma cajennense s.l. collected in Saltillo (Coahulia, Mexico) using human umbilical vein endothelial cells (HUVEC). One tick half was analysed by ompA PCR and was found to be positive for R. amblyommatis. The other half was selected for in vitro culture of Rickettsia spp. It was triturated in 1 mL of endothelial cell growth medium with 1% antibiotic-antimycotic solution, and the homogenate was inoculated into a HUVEC line. Culture was maintained at 33°C in endothelial cell growth medium plus 2 mM l-glutamine and 2% fetal calf serum, with 5% CO2. The medium was changed weekly. Culture was checked by Gimenez stain for Rickettsia-like intracellular organisms. After 48 days of incubation, Rickettsia-like organisms were observed in HUVEC. PCR assays and sequencing of ompA gene in the culture suspension showed 100% identity with R. amblyommatis. This isolate was successfully established in HUVEC, and it has been deposited in the collection of the Center of Rickettsioses and Arthropod-Borne Diseases, Infectious Diseases Department, Hospital San Pedro-Center of Biomedical Research from La Rioja, Logroño, Spain. The HUVEC line is a useful tool for the isolation of R. amblyommatis.

14.
J Investig Allergol Clin Immunol ; 28(2): 106-112, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29235434

RESUMO

OBJECTIVE: To investigate the prevalence of and factors associated with the presence of α-gal-specific IgE in a risk group of foresters and forest workers from La Rioja, Spain and in a control group. METHODS: The study population comprised 169 workers and 100 individuals who did not recall having had tick bites. A questionnaire including demographic data and number of tick bites per year was completed by a physician. α-Gal sIgE was assessed using ImmunoCAP with serum samples that had been taken in 2010. In 2015, second serum specimens were taken from all but 1 of the workers, who had positive specific IgE to α-gal in 2010. These new samples were tested for IgE to the α-gal epitope and to mammalian meat. RESULTS: The prevalence of positive sIgE to α-gal was 15% in the risk population and 4% in the control population. α-Gal sIgE positivity was associated with the number of tick bites per year and with seniority. Thirteen out of 21 patients sensitized to α-gal in 2010 showed positive specific IgE to α-gal in serum samples from 2015. Eleven had specific IgE to mammalian meat, but none reported symptoms of meat allergy. CONCLUSIONS: The prevalence of α-gal sIgE antibodies in this risk population was higher than in the control group and was associated with the number of tick bites per year and with seniority. None of the workers sensitized to mammalian meat developed meat allergy, possibly owing to the low levels of sIgE to α-gal.


Assuntos
Imunoglobulina E/imunologia , alfa-Galactosidase/imunologia , Adulto , Alérgenos/imunologia , Epitopos/imunologia , Feminino , Florestas , Humanos , Masculino , Carne , Prevalência , Espanha , Picadas de Carrapatos/imunologia
16.
Clin Microbiol Infect ; 22(8): 734.e1-6, 2016 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-27217049

RESUMO

Mediterranean spotted fever caused by Rickettsia conorii is a potentially lethal disease characterized by vascular inflammation affecting multiple organs. Studies of R. conorii so far have focused on activation of inflammatory cells and their release of inflammatory cytokines, but complement activation has not been investigated in R. conorii-infected patients. Here, we performed a comprehensive analysis of complement activation markers and the soluble cross-talking co-receptor CD14 (sCD14) in plasma from R. conorii-infected patients. The clinical data were supplemented with ex vivo experiments where the cytokine response was characterized in human whole blood stimulated with R. conorii. Complement activation markers at the level of C3 (C3bc, C3bBbP) and terminal pathway activation (sC5b-9), as well as sCD14, were markedly elevated (p <0.01 for all), and closely correlated (p <0.05 for all), in patients at admission compared with healthy matched controls. All tested markers were significantly reduced to baseline values at time of follow up. Rickettsia conorii incubated in human whole blood was shown to trigger complement activation accompanied by release of the inflammatory cytokines interleukin-1ß (IL-1ß), IL-6, IL-8 and tumour necrosis factor. Whereas inhibition of either C3 or CD14 had only a minor effect on released cytokines, combined inhibition of C3 and CD14 resulted in significant reduction, virtually to baseline levels, of the four cytokines (p <0.05 for all). Our data show that complement is markedly activated upon R. conorii infection and complement activation is, together with CD14, responsible for a major part of the cytokine response induced by R. conorii in human whole blood.


Assuntos
Febre Botonosa/imunologia , Febre Botonosa/metabolismo , Ativação do Complemento/imunologia , Proteínas do Sistema Complemento/imunologia , Citocinas/metabolismo , Receptores de Lipopolissacarídeos/metabolismo , Rickettsia conorii/imunologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Biomarcadores , Febre Botonosa/microbiologia , Estudos de Casos e Controles , Citocinas/sangue , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
17.
Rev. mex. ing. bioméd ; 37(1): 49-61, ene.-abr. 2016. tab, graf
Artigo em Inglês | LILACS-Express | LILACS | ID: lil-789473

RESUMO

Abstract The Impulse Oscillometry System (IOS) has been recognized as a useful diagnostic tool. Previous research by our group has shown that R5 (Resistance at 5 Hz), R5-R20 (frequency dependence of resistance), AX (the "Goldman Triangle") and the extended Resistor-Inductor-Capacitor (eRIC) model-derived parameter Cp (peripheral Compliance) are reliable measures that track respiratory system function. Here we determined the predictive equations from 112 asthmatic and non-asthmatic Anglo and Hispanic children data, that were previously classified into four groups: Normal, PSAI (Probable Small Airway Impairment), SAI (Small Airway Impairment), and Asthma by using regression analysis of IOS and eRIC model parameters as dependent variables regressed against age, height, and weight. Height showed the greatest correlation with IOS and eRIC model parameters and provided the most significant reference values for these measures in Anglo and Hispanic children. These values could serve as a useful framework for diagnosis, early interventions, and treatment of respiratory diseases in this population.


Resumen El Sistema de Oscilometría Impulsos (por sus siglas en Inglés: IOS) ha sido reconocido como una herramienta de diagnóstico útil. Investigaciones previas realizadas por nuestro grupo han demostrado que R5 (Resistencia a 5 Hz), R5-R20 (dependencia a la frecuencia de la resistencia), AX (el "Triángulo de Goldman") y el párametro Cp (Capacitancia periférica) derivado del modelo extendido Resistencia-inductor-condensador (eRIC) son medidas fiables que monitorean la función del sistema respiratorio. El presente estudio determina las ecuaciones de predicción de 112 niños Anglo e Hispanos asmáticos y no asmáticos, que previamente clasificados en cuatro grupos: Normal, PSAI (por su nombre en inglés: Probable daño en las vías aéreas menores), SAI (por su nombre en inglés: Daño en las vías aéreas menores), y Asma. Las ecuaciones de predicción se determinaron mediante análisis de regresión de parámetros del IOS y del modelo eRIC (variables dependientes) contra edad, estatura y peso. La estatura mostró la mejor correlación con los parámetros del IOS y del modelo eRIC, proporcionando los valores de referencia más significativos para estas medidas en niños Anglos e Hispanos. Estos valores podrían servir como un marco de referencia útil para el diagnóstico, intervenciones tempranas, y tratamiento de las enfermedades respiratorias en esta población.

18.
J Thromb Haemost ; 14(1): 114-20, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26559176

RESUMO

UNLABELLED: ESSENTIALS: When high probability of pulmonary embolism (PE), sensitivity of computed tomography (CT) is unclear. We investigated the sensitivity of multidetector CT among 134 patients with a high probability of PE. A normal CT alone may not safely exclude PE in patients with a high clinical pretest probability. In patients with no clear alternative diagnosis after CTPA, further testing should be strongly considered. BACKGROUND: Whether patients with a negative multidetector computed tomographic pulmonary angiography (CTPA) result and a high clinical pretest probability of pulmonary embolism (PE) should be further investigated is controversial. METHODS: This was a prospective investigation of the sensitivity of multidetector CTPA among patients with a priori clinical assessment of a high probability of PE according to the Wells criteria. Among patients with a negative CTPA result, the diagnosis of PE required at least one of the following conditions: ventilation/perfusion lung scan showing a high probability of PE in a patient with no history of PE, abnormal findings on venous ultrasonography in a patient without previous deep vein thrombosis at that site, or the occurrence of venous thromboembolism (VTE) in a 3-month follow-up period after anticoagulation was withheld because of a negative multidetector CTPA result. RESULTS: We identified 498 patients with a priori clinical assessment of a high probability of PE and a completed CTPA study. CTPA excluded PE in 134 patients; in these patients, the pooled incidence of VTE was 5.2% (seven of 134 patients; 95% confidence interval [CI] 1.5-9.0). Five patients had VTEs that were confirmed by an additional imaging test despite a negative CTPA result (five of 48 patients; 10.4%; 95% CI 1.8-19.1), and two patients had objectively confirmed VTEs that occurred during clinical follow-up of at least 3 months (two of 86 patients; 2.3%; 95% CI 0-5.5). None of the patients had a fatal PE during follow-up. CONCLUSIONS: A normal multidetector CTPA result alone may not safely exclude PE in patients with a high clinical pretest probability.


Assuntos
Angiografia/métodos , Tomografia Computadorizada Multidetectores/métodos , Embolia Pulmonar/diagnóstico por imagem , Tromboembolia Venosa/diagnóstico por imagem , Adulto , Idoso , Idoso de 80 Anos ou mais , Anticoagulantes/química , Tomada de Decisões , Ensaio de Imunoadsorção Enzimática , Feminino , Produtos de Degradação da Fibrina e do Fibrinogênio/análise , Seguimentos , Hemodinâmica , Humanos , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Probabilidade , Estudos Prospectivos , Embolia Pulmonar/epidemiologia , Espanha , Tromboembolia Venosa/diagnóstico , Tromboembolia Venosa/epidemiologia , Trombose Venosa/diagnóstico , Adulto Jovem
19.
J Thromb Haemost ; 14(1): 105-13, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26469193

RESUMO

UNLABELLED: ESSENTIALS: We performed a pooled analysis of 926 patients with cancer-associated incidental pulmonary embolism (IPE). Vitamin K antagonists (VKA) are associated with a higher risk of major hemorrhage. Recurrence risk is comparable after subsegmental and more proximally localized IPE. Our results support low molecular weight heparins over VKA and similar management of subsegmental IPE. BACKGROUND: Incidental pulmonary embolism (IPE) is defined as pulmonary embolism (PE) diagnosed on computed tomography scanning not performed for suspected PE. IPE has been estimated to occur in 3.1% of all cancer patients and is a growing challenge for clinicians and patients. Nevertheless, knowledge about the treatment and prognosis of cancer-associated IPE is scarce. We aimed to provide the best available evidence on IPE management. METHODS: Incidence rates of symptomatic recurrent venous thromboembolism (VTE), major hemorrhage, and mortality during 6-month follow-up were pooled using individual patient data from studies identified by a systematic literature search. Subgroup analyses based on cancer stage, thrombus localization, and management were performed. RESULTS: In 926 cancer patients with IPE from 11 cohorts, weighted pooled 6-month risks of recurrent VTE, major hemorrhage and mortality were 5.8% (95% confidence interval [CI] 3.7-8.3%), 4.7% (95% CI 3.0-6.8%), and 37% (95% CI 28-47%). VTE recurrence risk was comparable under low molecular weight heparins (LMWH) and vitamin K antagonists (VKAs) (6.2% vs. 6.4%; hazard ratio [HR] 0.9; 95% CI 0.3-3.1), while 12% in untreated patients (HR 2.6; 95% CI 0.91-7.3). Risk of major hemorrhage was higher under VKAs than under LMWH (13% vs. 3.9%; HR 3.9; 95% CI 1.6-10). VTE recurrence risk was comparable in patients with an subsegmental IPE and those with a more proximally localized IPE (HR 1.1; 95% CI 0.50-2.4). CONCLUSION: These results support the current recommendation to anticoagulate cancer-associated IPE with LMWH and argue against different management of subsegmental IPE.


Assuntos
Hemorragia/complicações , Neoplasias/complicações , Embolia Pulmonar/complicações , Tromboembolia Venosa/complicações , Adulto , Idoso , Idoso de 80 Anos ou mais , Anticoagulantes/uso terapêutico , Estudos de Coortes , Interpretação Estatística de Dados , Feminino , Seguimentos , Hemorragia/diagnóstico , Hemorragia/prevenção & controle , Heparina de Baixo Peso Molecular/uso terapêutico , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Embolia Pulmonar/diagnóstico , Recidiva , Sistema de Registros , Fatores de Risco , Tomografia Computadorizada por Raios X , Resultado do Tratamento , Tromboembolia Venosa/diagnóstico , Vitamina K/antagonistas & inibidores , Adulto Jovem
20.
Med Vet Entomol ; 29(3): 349-53, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-26111122

RESUMO

The genus Anaplasma (Rickettsiales: Anaplasmataceae) includes species of medical and veterinary importance. The presence of Anaplasma spp. in ticks from birds, as well as in Haemaphysalis punctata (Ixodida: Ixodidae) specimens collected from cattle and vegetation in northern Spain was investigated. A total of 336 ticks from birds [174 Ixodes frontalis (Ixodida: Ixodidae), 108 H. punctata, 34 Hyalomma marginatum (Ixodida: Ixodidae), 17 Ixodes ricinus (Ixodida: Ixodidae) and three Ixodes spp.], and 181 H. punctata specimens collected from cattle (n = 71) and vegetation (n = 110) were analysed. Anaplasma bovis was detected in five H. punctata, including two from birds (1.9%) and three from vegetation (2.7%). Four I. frontalis (2.3%) (one co-infected with 'Candidatus Midichloria mitochondrii') and one I. ricinus (5.9%) removed from birds, as well as four H. punctata (5.6%) collected from cattle showed Anaplasma phagocytophilum infection. In addition, Anaplasma centrale was found in two H. punctata, one from a cow (1.4%) and the other from vegetation (0.9%). This study represents the first evidence of the presence of A. bovis in European ticks, and reports the first detection of A. bovis and A. centrale in H. punctata, and the first finding of A. phagocytophilum and 'Ca. Midichloria mitochondrii' in I. frontalis.


Assuntos
Anaplasma/fisiologia , Doenças das Aves/epidemiologia , Doenças dos Bovinos/epidemiologia , Ixodidae/microbiologia , Doenças Transmitidas por Carrapatos/epidemiologia , Anaplasma centrale/fisiologia , Anaplasma phagocytophilum/fisiologia , Anaplasmose/epidemiologia , Anaplasmose/microbiologia , Animais , Doenças das Aves/microbiologia , Bovinos , Doenças dos Bovinos/microbiologia , Ehrlichiose/epidemiologia , Ehrlichiose/microbiologia , Feminino , Ixodes/crescimento & desenvolvimento , Ixodes/microbiologia , Ixodidae/crescimento & desenvolvimento , Larva/crescimento & desenvolvimento , Larva/microbiologia , Masculino , Ninfa/crescimento & desenvolvimento , Ninfa/microbiologia , Espanha/epidemiologia , Doenças Transmitidas por Carrapatos/microbiologia
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